* Switch trailing comma to ES5 mode in addons * Add build process for createReactClass * Test UMD bundles on CI * Fix lint
* Lint addons * Run prettier on addons * Fix all lint issues * Remove unused variable * Test addons on CI
* [#9627] Fix create-react-class isMounted ordering issue Split the IsMountedMixin in two so that the __isMounted flag is set to false after componentWillUnmount is executed in mixins and the component. * Revert changes to integration test